Thank you for the question! Ultimately, you're pretty right on the money- however you'd like to negotiate his abilities will work for us! As long as it doesn't conflict with the worldbuilding from his canon, it's fine to assume that other characters in Hadriel have destinies/fates that Kiran can extract magic from, as long as this doesn't adversely affect other characters (and if it does, it's something that we would require a permissions post for).